Web winding apparatus



Aug. 24, 1943. c. P. VOGEL 2,327,832 WEB WINDING APPARATUS Filed Dec.so, 1941 CARL P. V GEL INVEN FOR BY WW 4 ATTORNEYS Patented Aug. 24,1943 man Kodak Company, poration ofNew Jersey ApplioationDecember s l vI k 4 Claims The present invention relates to winding maohines andparticularly to a winding mechanism adapted for winding up a' coated webof material;

and in' which the wind-up rQlPi'sdrivenby being maintained in rollingcontact-with a driving cyL inder. a l i It is common prac coated paperto have the wind up roll driven by being maintained in rolling contactwith a driving cylinder. It is also well known in the art in windingcoated paper to continually rock the wind-up roll longitudinally of thedriving cylinder during the winding "operation. The purpose of thisrocking action is to pound the edges or. the wind-up roll of paperagainst the driving cylinder so that they will not split due toback-coating along the. edges, vor due to thick'edges; and to assist inbaggy paper being wound without formation of winding buckles. t v It hasbeen foundthat in the winding of a roll of paper by means. of a rollingcontact upon a driving cylinder, an unevenly and loosely wound roll isoften obtained at the start of the windin operation due to 'slippa'gebetween the paperand the driving cylinder, as the weignt'iof the roll isinsuificient to maintain satisfactory rolling'eon tact. However, as theweightoi Ath roll gradually becomes'greater, slippage decreases; untilfinally it becomes negligible. Attire other extreme, as-the wind-up rollbecomes excessively large, the weight becomes such thatthe paper'is heldso tightly against the driving cylinder that winding buckles areoiten'form'edr r It has been found that these noted efiects can beovercome by forcing the wind-up roll against the driving cylinder duringthe ti'me'the' weight of "the wind-up roll is insufilcient topreventslip pa e between the paper andvthe driving cylinder,

tice in winding up a web 01' the vertically of N. an, assent to East-.

Rochester, N. Y., a cork 1941, si-iai No. 424,931 I (11242 6501 thatdirt or ire n up operation.

Therefore, one object of the present invention is the provision of awinding mechanismwhereby' thevvwind-up roll is simultaneously rocked andwound, and at the sametime; the *pressurebetween the wind-up rolland-the driving-cylinder is capable of being varied, in accordance withthe size of=the wind up roll, by a fluid operating means: 1

A further mechanism,-of the typeset forth in which the rocking andjackingcrnelchanism for the wind-up roll is so arranged and locatedrelative to the web being wound thatdirt, grease, and iron particlesincident totheir operations cannot come in contact'with the webr l y t gl l yet: another object is the provision ina winding mechanism or the.type set iorth ofoa fluid operated means ior moving'the wind-up roll thedriving cylindenand by means winding voperation bylfluid pressure, or bymeans of which. thefluid pressure may be neutralized and jacking'jup thewind-up roll toj decreas'e thepressure between the drivingcylinderandwthe' wind-up roll when the weight of the roll'becomes excessive. Itis imperative with certain kinds of paper, e. a; paper which is to becoated with a sensitive emulsion" for photographic purposes, that allforms of foreignmatter, including dirt, dust, metal particles, andgrease, be prevented from coming in contact with'the papehi For example, it has been found that' mic roscopic pieces of iron 'on a paperused for photographic purposes will cause comparatively; large stainsand blemishes on the finallyprocessed paper, and

which stains and blemishes cannot be removed,

Therefore; it is desirable-thatwthe'rocking; and jacking mechanism forthewind-up roll'besoxar-r ranged and located relative to the web ofpaper when; the wind-up roll i o f suchgsize thatthe slippage becomesnegligible; or by the contact pressure of the wind up roll-against thedriving cylinder-mayb partially neutralized when the size of the;wind-up roll becomes excessive. And still another object is theprovision ofha wind-up. roll rocking and jacking "mechanism whiohissimple and efficient operation, and is soarrangedand located as to leavethe wind-up r011 readily accessible for necessary manipulation andinterchanging of rolls. a a a H The novel features that -I considercharacter istic of my invention are set forth with particularity in theappended claims. The invehtionitself, hbweven both as to itsorganization and its methods of operation, together with additionalobjects and advantages thereof; will best be -understood from thefollowing'd'escription or specifieem iments when read in connection withthe accompanyingdrawing in which:

Fig. '1' is a perspectiv I mechanism construotedinaccordance with thepreferred embodiment of the. present invention,

l2 isa diagrammatic end view of thewindup roll and driving cylindershowing the path not the 'web to, be wound-'from'.'a-" snitab leisourceof supply. 1 I I Y tothe operations of each will not fall onto the paperduring the windof which the wind-up roll may beheld in contact means ofwhich view of a web wind-up V the floor ll of the building. The drivingcylinder is adapted to be constantly driven from any prime mover, notshown, through driving means including line shaft l2, vertical; shaftl3, and

shaft I 4 integral with the cylinder, each of the shafts beingoperatively connected together, as

by bevel gears, as shown. The web W is adapted to be wound upon a rolli5 which is held rigidly to a movable supporting frame i6 by means ofcollars l7, a shaft 18, and the .remov able bearings I9. The web'W isdirected from any source of supply over a a pair of guide rollers 2iand" 22 to the under and around which.

side of the driving cylinder Ill it passes with a substantiallyISO-degree wrap to the take-up roll, see Fig, 2. The source of supply ofthe web is not important tothe present invention, but by way of exampleit' might be stated that the supply 'could'be a. festoon drying'machineinto which a paper is fed for drying-purposes after being coated 'witlra material, such as blancfixe,

The supporting frameifi is rectangular in shape andfpasses throughopenings 23 in the floor H for purposes hereinafter fully--set'=forth:It will be notedthat the openings 23 i'ri'the floor are substantiallywider than the parts of the supporting frame passing therethr'ough,' andthis is to permit the supporting frame to rock' transversely as willbe-clearlyflset 'forth below; As "will be obvious from the-drawing, the's'up porting frame 16 is-free to new verticallybf the driving cylinderandis normally supported by theiwind-upi'roll resting 'on'the top offthedriving cylinder, this nmgwnma beingjthe' sole meansofrotatingtliewind-up rongj l" i i when winding,the' web the wind-uproll' is constantly rocked longitudinally of'the driving cylinder by theaction ,of the pivoted," oscillated, jogger arm 2,4 upon the supportingframe i6; Thefjogger arm is pivoted' at onie end 25 to: a bracketanchored to"thfe underf;side of the floor and, the other end'thereofextends between two, rollers 26 mounted ind spaeed relation 'on thebottom crossarm-of the suppo'rtingtframe. The jogger arm 24'r'nay beconstantly oscillated by any suitable eccentric mechanism operated fromthe driving 4 inder so that theiframe will'be rocked at all times duringthe winding operation; By'way'of a specific'embodiment ofya mechanismwhich might be used, I have shown a camj'i mounted on a drive shaft7Z8directly connected'to the driving mechanism of the drivingcylinden'engaging two, spaced lugsZil ori'the jogger arm, It is pointedout that with, this mechanism for rocking the wind-up roll, allmechanicallycooperatingparts which might tend to discharge foreign.material such as iron, grease, etc.,- are. located below the web;being;;wound-; s o that there is no chance of fore gn ;matter ernanatring from this source comingv in contact'with the web. As wasrpointediout above the "purpose of this rockingaction of theriwind-uprolllongitudinally of the driving cylinder is to pound the edges of thewind-upfroll'againstthe driving-cylinder so that theywill not split dueto back coating along: the edgesand to reducethe thick edges, as well astovallow baggy paper to:

mechanism of the driving cylguide plate 20 and be wound without theformation of winding buckles. I

As pointed out above, in the winding of paper bylmeans of a rockingaction upon a driving cylinder, an unevenly and loosely wound roll isoften obtained at the start of the wind ing operation due to slippagebetween the paper and the driving cylinder, as the weight of the-rollisinsufiicient to maintaingsatisfactory driving contact. However, as theweight of the roll gradually increases, slippage decreases until finallyit becomes negligible. At the other extreme; as the wind-up roll ofpaper becomes excessively large, its weight becomes such that the paperis'heldso tightly against the driving i cylinder that Winding bucklesare often formed.

It; is'fthereiore, the object of the present inventionto provide meansfor increasing the pressure between the wind-up roll and the drivingcylinder at the start of the winding operation when the wind-up roll is.too light; for permitting the weight of :the wind-uproll and: frame todetermine they contact pressurewith the driving cylinder when the Weightof the roll is within limits to do this satisfactorily; and forpartially neutralizing the 'con, tact pressure when the wind-up rollbecomes excessively'large. To this end, the pressure arm 35 is, pivotedat oneend 3| to a support 32; fixed;

and extending downwardlyfrom,fthe underside of the floor H. The otherend of the pressure arm terminates in afplate'33'on which are rotatablymounted fur1rollers Miengaging op positeedges of the bottom cross farmof the sup-J porting-frame lihasshown-in Fig; 1; Thepressure arm 3!] isadaptedjto be raised and low ered by the action .OfzthQ piston in adouble-act ing fluid operatedv cylinder 35 supported from the under sideof the floor. =The"pisto'n' rod 36 is pivotally connected to. thepressure arm 30, at 38 and tlle'fiuid operating cylinder 35' is'pivotally supportedto theiun'der side of thefloor tel-account: for ther-.arcuate movement 'of the pressure arm? 31! ink? raising and loweringthe 7 frame vertically'so that the, piston of the' cyla inder I willoperate .with '1 a straight :thrust under all positionsof adjustmentof-the pressure arm. Fluidunder pressure compressed air, steam, oil,etc; can be admitted to the top or bottom of the fluid operated cylinderJ35 through'the feed li'n'esi391an'd 4EJ,.respectively, and-Tone sectionofeach of these feed lines,= preferably that lmme-i diately adjacentthetcylinder; should be :flexible to permitv the cylinder-t0 pivot bythe necessary amount aboutits'pivotal mounting. The admis sionof fluidto the two feedlin'es 39 and 40 from the'main feed line 4|'is'controlled by a manually operated three-way valve 42,'0f well-knowncon-' struction; and capableof being adjusted by'a hand leverv43 locatedabove 42 is'such'that when the hand lever 43 in one direction airiwillbe admitted to line 39.-to force the piston downwardlyrandjpull thewindup roll down against the'driving cylinder to increase the pressureof contact between the two during the time winding is being started. Inthe neutral. position of ...the :hand 'tlever the valve should exhaustboth feed lines39 and :40 so that no pressure other than the weight ofthe wind up rollplus the weight of the supporting frame e1'- is thrownthe i'wind-up roIIisLSufiicientIy VIarQe thatlthe force of gravity"gives a desired pressure .contact ;be-'

; tween theisame and; the driving (cylinder; In the the floori .Thevalve 1 other position of the hand lever the' valve should permit theair, or fluid, to'enter lin llland cause the pistonto pull upwardly onthe'pressu're arm 30 and partiallyfneutralizethe pressurec'aused bytheweightbf the wind-up roll and-the supporting frame wh'erithe size ofthe roll becomes so large that it causs'an'excessive contact pressurebetween the wind-up roll and the driving cylinder. i Y 1 f v Each'feedline 39 and All may include 'a pressure regulator 44, M foi 'r'egulatingihe pressur in two lines in accordance with conditions foundsuitable 3 in practice with webs of different maand wound at differentwinding speeds.

v The pressure for which the valves are regulated may be'indicated bythe pressure gages 66, 45K in-the respective-"lines, Checkvalves '45 and45 are placed in branchesfof the respective feed lines 39 and All-topermit thelinefs to be exhausted without necessitating the fluidtopassba'ckw'ards thru the pressureregulators and toeaus the incomingfluid topass thru the pressureregulators. Valv'elfi 4i areplacedinitherespective feed lines 39 and M so thatthe speed of introductionof thefluid intothe cylinder s scar be varied asdesired. a a q One skilled in:thefalrt will readily appreciate the fact that th'e'wind-up roll rockingand jacking mechanisms are such that the two can operate simultaneouslywithout the movement of the wind-up roll induced by one aitecting, inany way,

the movement of the wind-up roll induced by the other. Furthermore, theparticular arrangement of the rocking and jacking mechanisms for thewind-up roll insures against foreign material in- :1

cident to the operation of the same coming in contact with the web, inaddition to leaving the wind-up roll readily accessible for inspectionand replacement with an empty roll.

I havealso found that a more tightly and more evenly wound roll, freefrom winding buckles, results in the manipulation of the contactpressure between the wind-up roll and the driving cylinder in accordancewith'the variation of the change in 7 size of the roll. i

This is true even in cases where the ogging mechanism is not used inconjunction with the pressure regulating mechanism as set forth above.The jogging action of the roll is beneficial in winding paper which hasa tendency to y be baggy for the reason that it tends to stretch thebags out of the paper at the point of windup and thereby overcomeswinding buckles that would result from the presence of such baggyportions in the web. However, in windin up a previously calendered paperwhich is smooth and has no bags in it which would tend to cause windingbuckles, it is not necessary to jog the wind-up r011 during the windingaction. It is desirable, however, to obtain a tight, even, wind-up rollto vary the contact pressure between the wind-up roll and the drivingcylinder in the manner set forth. This factis pointed out to show thatthe plicated at any desired time without requiringspecialattentioniof'the operator; The fact that time inspecting thew'ebbeing'woundf Furthermore; this jackingmechanism provides a verticalsupport for the frame at all" times to prevent'the same from dropping 1down" on the top of the driving cylinder and injuring the cylinderor-the operator at the'time a run Wind-uproll is being 7 removed'fromthe machine andis being replaced by an empty-roll. 1 It will be obviousthat if there was'no jacking means for'fthe frame IE} then when a fullwind-up roll was removed from' the framytherenwould be lno'thing toprevent the frame from dropping downwardly against the driving-cylinder.I

9'- Althou'gh Ihave shown and described certain specif c embodiments ofmy invention, I am fully aware that many modificationsth'ere'of arepossible. Myinvention; thereforeis not to be limited to the precisedetails of construction shown and described but' is intended to coverall-mo'dificationscomi'ng within the scope. of 'the' appended Havingthus describedmy invention, what I claim is new and desire to secure byLetters Patent of the United States is: I

1. In a web winding machine the combination with a driving cylinder, awind-up roll for the web disposed above said driving cylinder and inrolling contact with'the same to be rotated thereby, asupporting framerotatably supporting said wind-up roll and adapted to move vertically,and

rock longitudinally, relative. to the axis of said driving cylinder tomove the wind-up roll vertically, and rock the same longitudinally,relative to the driving cylinder while the wind-up roll is being rotatedby the driving cylinder, means for continually rocking said supportingframe during the time the web is being wound on the windup roll, andfluid operated means acting on said supporting frame below' the wind-uproll and adapted to move said wind-up r011 vertically relative to saiddriving cylinder for varying the amount of pressure between the two inaccord- I ancewith the change'in size of the wind-up roll.

2. In a web winding machine the combination with a driving cylinder, awind-up roll for the web disposed above said driving cylinder and inrolling contact with the same to be rotated thereby, a'supporting framerotatably supporting said wind-up roll and adapted to move vertically,and rock longitudinally, relative to the axis of said driving cylinderto move the wind-up roll vertically, and rock thesame longitudinally,relative invention is not limited to the combined use of the jacking andjogging mechanisms, but covers the use of a jackingmechanism of the typeset forth even when no jogging mechanism is used or required.

to the driving cylinder while the wind-up roll is,

being rotated by the driving cylinder, means for continually rockingsaid, supporting frame during the time the web is being wound on thewindup roll, a fluid operated cylinder the piston of which isoperatively connected to the supporting frame at a point below thewind-up roll so as to move the frame and wind-up roller verticallyrelative to said driving cylinder, and manually operated means forcontrolling the introduction of a fluid under pressure into saidcylinder to vary the amount of pressure between the driving cylinder andthe wind-up roll in accordance with the change in size of the wind-uproll.

3. In a web winding machine the combination with a driving cylinder, awind-up roll for the web disposed above said driving cylinder and inrolling contact with the same to be rotated thereby, a "supporting.frame rotatably supporting said wind-up roll and adapted to movevertically, and rock longitudinally, relative to the axis of saiddriving cylinderto' move the wind-up roll vertically, and rock the samelongitudinallygrelative to the driving cylinder while the wind-up rollis being rotated by the drivingvcylinder, means for continually rockingsaid supporting frame during the time the web is being wound on thewindup roll, and including a pivoted joggerarm operatively, connected tosaid supporting frame at a point below the path of the web, an eccentricfor oscillating said jogger armabout its pivot, said eccentric beingconnected to the driving mechanism for the driving cylinder, and fluidoperated means acting on said supporting frame below the path of the weband adapted to move said wind-up roll vertically relative to saiddriving cylinder for varying the amount of pressure with the change rocklongitudinally; relative to 'the:-axis. of said driving cylinder to movethe wind-up rollverti cally, and rock the same longitudinally,; relativeto the driving cylinder while the windup roll is being rotated by thedriving cylinder, means for continually rocking said supporting rramedur-. i

ing the time the web, is being wound on the windup roll, and including apivoted jogger armoperatively connected to said supporting frame iat apoint below the path of the web,'an eccentric for oscillating saidjogger armabout its pivot,

said eccentric being connected to the driving mechanism for the drivingcylinder,- and fluid op-x erated means acting on said-supporting framebelow the path of the web and adapted to move} said wind-up rollvertically relative to said driv ing cylinder for; varying the amountofpressure between the'two 'in accordance with the change in size-of thewind-up "roll, saidfiuid-operating means including a; pivoted armoperatively connected at one end to said supporting frame at a Web, adouble acting point belowthe path of the fluid operated'cylinder thepiston of which'is con nected to said armto, move the frame vertically 1of the driving cylinder, and manually operated means for controlling theintroduction'of a fluid I under'pressure into said cylinder;

- CARL-PQVQGELQ v

